National Weather Service United States Department of Commerce

Heavy snow continues across parts of Upper Midwest

Late-season snow showers are expected across portions of the Upper Midwest on Thursday, mainly across the Arrowhead region of Minnesota, much of Wisconsin and the Upper Peninsula of Michigan. The snow could be heavy at times in some locations, but is expected to diminish during the afternoon.
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Hazardous Weather Conditions

Last Update: 349 PM EDT THU APR 17 2014

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Coastal waters from Bonita Beach to Englewood FL out 20 NM

Marine Zone Forecast

IMPORTANT NOTICE TO MARINERS...MARINE FORECASTS ARE ISSUED AT LEAST FOUR TIMES A DAY. BOATERS ON EXTENDED TRIPS SHOULD ROUTINELY MONITOR SUBSEQUENT FORECAST ISSUANCES AND UPDATES FOR THE LATEST MARINE WEATHER INFORMATION. THE WAVE HEIGHTS ARE FORECAST AS SIGNIFICANT WAVE HEIGHT WHICH IS THE AVERAGE OF THE HIGHEST ONE-THIRD OF THE WAVES. THE HIGHEST WAVES MAY RARELY BE TWICE THE SIGNIFICANT WAVE HEIGHT. THE WINDS AND SEAS NEAR THUNDERSTORMS MAY BE HIGHER THAN FORECAST.


  • SynopsisA WARM FRONT ACROSS SOUTHERN FLORIDA FROM THE ATLANTIC TO THE GULF OF MEXICO THIS AFTERNOON WILL SLOWLY LIFT NORTH THEN SHIFT EAST...AS LOW PRESSURE FORMS ON THE WESTERN PORTION. THE LOW TRACKS INTO THE NORTHEAST GULF AND ACROSS NORTH FLORIDA FRIDAY AND FRIDAY NIGHT. HIGH PRESSURE WILL BUILD BACK INTO THE GULF DURING THE WEEKEND AND THROUGH EARLY NEXT WEEK. AN EASTERLY SURGE THIS EVENING WILL REQUIRE CAUTION HEADLINES. THEN THE FORMING LOW WILL INCREASE WINDS TO SMALL CRAFT ADVISORY SPEEDS IN THE NORTH FRIDAY...THESE WINDS SPREAD SOUTHWARD NIGHT NIGHT AND EARLY SATURDAY.
  • Tonight East winds 10 to 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Scattered showers and isolated thunderstorms in the evening.
  • Friday Southeast winds 10 to 15 knots then becoming south in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated thunderstorms in the morning...then numerous showers and scattered thunderstorms in the afternoon.
  • Friday Night Southwest winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered showers and isolated thunderstorms.
  • Saturday West winds 10 to 15 knots then becoming northwest around 20 knots in the afternoon. Seas 3 to 5 feet. Bay and inland waters choppy. Scattered showers in the morning. Isolated thunderstorms.
  • Saturday Night Northwest winds around 20 knots diminishing to 5 to 10 knots after midnight. Seas 4 to 6 feet. Bay and inland waters choppy. A slight chance of showers.
  • Sunday Northwest winds 5 to 10 knots increasing to around 15 knots in the afternoon. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
  • Sunday Night North winds 10 to 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
  • Monday North winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
  • Monday Night North winds around 10 knots then becoming northeast after midnight. Seas 2 feet. Bay and inland waters a light chop.
  • Tuesday North winds around 5 knots then becoming northwest around 10 knots in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.



Additional Forecasts and Information

Zone Area Forecast for Coastal waters from Bonita Beach to Englewood FL out 20 NM